This table provides a summary of the Length or Distance units within their respective measurement systems.
Unit |
Symbol |
Measurement System |
Description |
inches |
in or " |
US Customary Units/Imperial System |
36 inches = 1 yard |
feet |
ft or ' |
US Customary Units/Imperial System |
1 foot = 12 inches |
yards |
yd |
US Customary Units/Imperial System |
1 yard = 3 feet |
miles |
mi |
US Customary Units/Imperial System |
1 mile = 1760 yards or 5280 feet |
picometers |
pm |
Metric System |
1 m = 1,000,000,000,000 pm |
nanometers |
nm |
Metric System |
1 m = 1,000,000,000 nm |
micrometers |
μm |
Metric System |
1 m = 1,000,000 μm |
millimeters |
mm |
Metric System |
1 m = 1,000 mm |
centimeters |
cm |
Metric System |
1 m = 100 cm |
decimeters |
dm |
Metric System |
1 m = 10 dm |
meters |
m |
Metric System |
base unit |
decameters |
dam or dkm |
Metric System |
1 dam = 10 m |
hectometers |
hm |
Metric System |
1 hm = 100 m |
kilometers |
km |
Metric System |
1 km = 1,000 m |
megameters |
Mm |
Metric System |
1 Mm = 1,000,000 m |
gigameters |
Gm |
Metric System |
1 Gm = 1,000,000,000 m |
nautical miles |
M or NM or nmi |
Non-SI (International) |
1 nmi = 1,852 meters |
angstroms |
Å |
Non-SI (International) |
10,000,000,000 Å = 1 m |
rods |
rod |
Non-SI (International) |
320 rods = 1 mile |
Note: For Length and Distance conversions, US Customary Units and the Imperial System are equivalent.